Memory leak in process_abbrev_set

We may have added some abbrevs to the list before hitting an error.
Free the list elements too.  free_abbrev_list returns list->next so we
need to init it earlier to avoid an uninitialised memory access.

	* dwarf.c (process_abbrev_set): Call free_abbrev_list on errors.
	Set list->next earlier.
1 file changed